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Feb. 9, 1932; H. E. NORVIEL' SWITCH AND c'oIL UNIT Filed Dec. 21. 1927 2 Sheets-Sheet Jwuentz 32;; J 57/ Feb. 9, '1932. H. E. NORVIEL 1,844,783

SWITCH AND COIL UNIT Filed Dec. 21. 191i! 2 Sheets-Sheet 2 //0/- To DISTRIBUTOR 5% W ff;

Patented l= eb. 9, 1932 I I nanny a. noavma, or ANDERSON,

INDIANA, assrenoa ro .miLco-nmi' coarona- 'IION, OF DAYTON, OHIO, A CORPORATION OF DELAWARE SWITCH AND COIL UNIT Application filed December 21, 1927. Serial No. 241,679.

This invention relatesto ignition switch and coil units for automotive vehicles and one of the objects of the invention is to produce at. low cost a lock switch and a coil unit 3 which is rugged in construction and reliable in operation.

A'further object of the invention is to provide a unit comprising a plurality of ignition coils and a single key operated switch for controlling the connection of the coil with a current source.

Further objects and advantages of the present invention will be apparent from the following description, reference being had to the accompanying drawings wherein a preferred form of embodiment oi the present invention is clearly shown.

In the drawings:

' Fig. 1 is a front view of a unit embodying the present invention. =F1g. 2 is a side view, partly in longitudinal section, the section being taken on the/line 2-2 of Fig. 1.

Fig. 3 i'sa view looking in the direction of the arrow 3 .in Fig. 2, the switch case being removed. A g

--Fig. 4 is a fragmentary sectional view taken principally on the line 4-4 of Fig. 1.

F'g. 5 is a fragmentary sectional view taken on the line 5-5 of Fig. 1.

, Fig. 6 is a fragmentary sectional view lookingin' the direction of arrow 6 of Fi 5.

ig. 7 is a side view 'partl in longltudinal section, of a modified form 0 lock-switch and coil unit embodying the present invention.

Fig. 8 is a wiring diagram of the circuits included in the form'showu in Fig. 2.

' The ignition coil used in both forms of the invention may be any suitable ignition coil having a non-conductin end cover which ma serve as a support or switch contacts. no suitable ignition coil is that shown inthe copendin apglication of William A. Chryst and filalp .I. Bates Serial No.

236,552, filed Nov. 29, 1927, (DR-3436); This coil comprises a tubular metallic case;

20which' cooperates with anon-conducting end cover 21 and .a non-conducting end cover 22 to. enclose the windings and magnetic circuit members of the, coil and also tne leads from the coils to certain contacts carried by the covers. The coil comprises a secondary winding 23 wrapped upon a non-conducting tube 24 and covered by. non-conductingwrapping 25. The tube 24 receives a central magnetic circuit provided by a bundle of iron wires 26, which extend beyond the end of the I nun-gins 27 of the paper strips which insulate the layers of secondary turns. The core 26 terminates short of the lefthand end of tube 24 and the left hand end of the pa er margins28. The end member 22 is rovi ed with an annular flange 29 which efines a recess 30 for receiving a non-conducting disc 31 and portions of the wrapping 25, the paper margins 28 and the tube 24, and a nonconducting plug 32 located within the tube 24. In this-way, the left end of the secondary winding is supported against lateral movement. The cover member 21 is providhand end of the wrapping 25, a portion of the paper margins 27, and of the tube 24 and of the core wires 26. Thus the right handend of the secondary coil 23 and of the core 26 is supported against lateral movement. A

non-conductin tube 34 upon whichthe primary coil 35 is wound is confined between the flanges 29 and 33 to prevent lateral and longitudinal movement thereof. There is a space between the tubes 34 and 25 in order that the hydrolene 36, introduced at either end of the case 20 before the covers are attached, may flow between the primary and secondary coils. The primary winding 35 is surrounded by a tube 37 u on which is wound a strip of magnetic s set material, the turns of which are'insulated by sheet insulating material. The wrapping ofmagnetic material and insulating material about the tube 37 is indicated by numeral 38. The end cover 21 is provided with a hole 40 for receiving the outside lead 41 of the ed with aflange 33 for receiving therightsecondary 23 and the inside lead42 of the primary 35. These lead wires are attached by soldering to a terminal plate 43 attached to the end cover 21 and receiving a terminal screw '44. The cover 21 is provided with a hole 45 for receiving a wire 46 which is attached, aiter'minal plate 47- recevin'g a terminal screw 48. The other end of the wire 46 is led through a hole 49 provided in the end cover 22 and .is connected with rivet 50 having its head 51 embedded in the insulating material 22 which is preferably a molding compound which is molded around the rivet 50. The cover 22 is rovided with an insert-rivet 52 to which a wire 53 is attached, this wire passing through a hole 54 in the cover 22 and connected with the outside inturn of the primary 35.

The construction of the upper coil shown in Fig. 2 is the same as the lower, but certain connections shown in the lower coil are omitted in the u per coil. The cases of the coils are wel ed to metal collars 60 provided with ears 61 which are attached by rivets 62 to a coil mounting plate 63. The coil mounting plate 63 is provided with a number of holes as shown in Fi 3, for receiving screws 65 havin threa ed engagement with the flange 66 o a switch case member 67 which cooperates with the plate 63 to enclose the switch and lock and the electrical connections between the switch and the innition coils. The front wall 70 of the switch case 67 carries a tubular boss 71 in which is fitted a tube 72 cooperating with the boss 71 to provide a guide for the barrel 73 of a conventional automobile-type tin-tumbler lock. The details of this lock are not shown but it will be understood by those skilled in this art by turning the proper key 74 which is received by a key cylinder 75, rotatable in the barrel 73, a locking bolt 76 will be retracted against a pressure of a compression spring 77 so that the end of the bolt 76 will belocated with the flush of the exterior of the barrel 73. The switch case 67 provides recesses 78 and 79 for receivin the bolt 7 6 in either position of the barrel 3. The barrel 73 is revented from turning and its movement is limited by providing the barrel with a groove 80 which receives apin 81 extending from the grooved plug 82 threadedly engaging the case 67. The movement of the barrel 73 is used in o rating a switch for controlling the flow 0 current through the ignition coils.

The ignition switch comprises a pair of resilient blades 84 and 85 which are normally held apart by an L-shaped non-conducting support 86 carrying a contact rivet 87 engageable with the blades 84 and 85 simultaneously. The contact support 86 is attached by rivets 88 to a bracket 89 attached by a screw 90 to the barrel 75 and prevented from rotating by pin 81. The contact blade 84 is attached by rivets 92 to a bracket 93 which is attached to the conducting rivet 50 and to a similar rivet 50a provided by an insert in the cover plate 22 as shown particularly in Fig. 3. The contact plate 85 is similarly supported by a bracket 94 which is attached to the conducting rivet 52 and by similar rivet 52a to the end cover 22. The upper coil shown in Fig. 2 is providedv with a similar bracket 94 attached by the rivets 52 and 52a. The location of the up er coil relative to the mountin plate 63 is t e reverse of the relation of the mounting late63 and the lower coil. That is, the brac et 94 of the lower coil is uppermost while the bracket 94 of the upper coil is lowermost as shown in Fig. 3. The two brackets 94 are connected by a strap 95 attached at its ends by the screws 96. The rivets 50 and 50a of the upper coil perform no function, but are present merely because the same cover 22 is used for both coils.

lVhen the lock mechanism is in the position shown in the drawings the switch contacts 84 and 85 will be separated by the nonconducting contact support 86. To close the switch, the key 74 is turned in order to retract the bolt 76 from the recess 78 thereby releasing a spring which, by reason of its location between the end cover 22 and the barrel 73, causes the barrel 73 to be moved toward the left until the right hand end of the groove 80 is engaged by the end of the pin 81. In this position of the barrel the key 7 4 may be released to permit the bolt 7 6 to move into the recess 79 so that the key may be'withdrawn if desired. Movement of the barrel 73 as described will cause the contact rivet 87 to move into engagement with the contact blades 84 and 85, thereby closing the switch.

Referrin to Fig. 8, when the switch is closed the ollowing ignition circuit will be established battery 110 grounded at 111 and connected with coil terminal plate 47, wire 46 within the coil, contact bracket 93, contact 84, conntact 87, contact 85, strap 95 connected with both brackets 94, and parallel primary coil circuits each circuit including the outside lead 53 of the primary, the primary coil 35, the inside lead 42, coil terminal 43, an

ignition circuit breaker terminal 112, a movable interrupter contact 113 and a stationary interrupter contact 114 grounded -at 115. Each circuit breaker lever includes a, rubbing block 116 operated by a cam 117.

Y In this way a single switch controls the primary circuit of both ignition coils. To open the switch the barrel 73 is pushed inwardly preferably withoutv using a key; and

when the bolt 7 6'has been moved adjacent the recess 78 it will spring into this recess to lock the barrel 73 in switch-open position against the compression of the spring 100. The spring 100 is retained in position by locating one of its ends in a recess 101 provided by the barrel 73 and by placing the spring around a cyligdrical lug 102 integral with the end cover 2 The outside lead 41 of the secondary coil 23 of each coil is grounded through the timer as shown in Fig. 8 by connecting the lead 41 with the coil terminal plate 43. The inside lead 105 of each secondary coil 23 is connectnected by ed with the. core 2,6 and the core 26 is cona nail 106 with a conducting sleeve 107 which receives the terminal clip of a wire leading to a distributor not shown.

Referring to Fig. 7, in case it is desired to use but one of the ignition coils which have been described with a key-operatedignition switch, the coil base is welded to a sleeve 120 having tangs 121 received by suitable notches in a switch frame 122 and bent over against the front of the frame 122. The frame 122 cooperates with the sleeve 120 to provide a housing for the switch. 'The construction of the switch and the key controlled device for operating its movable contact is the same as described in connection with the switch shown in Fig. 2. The connections between the ignition coil and the switch are the same as between the switch and the lower coil of Fig. 2.

The present invention switch and coil uni r ing within the scope of While the form of embodimentof the present invention, as herein disclosed, constitutes a preferred form, it is tob'e understood that other forms might be adopted, all comthe claims which follow.

What is claimed is as follows: 1. A lock-switch comprising,

wall of the case, terminal brackets within the case, contacts attached'to the brackets and extending alongsidethe barrel, and means actuated by the barrel for electrically confor urging the barrel in one necting the contacts. 4

2. A lock-switch comprising, a switch'case, a lock barrel slidably supported by the case, terminal brackets within the case and attached to the back wall thereof, contacts attached to the brackets and extendingalongside the barrel, and a movable contact member carried by the barrel for bridging the other contacts. i

3. A lock-switch comprising, a lock barrel slidably supported by the case, a spring bearing against a wall of the case and the end of the barrel within the ease direction, a key controlled latch for holding the barrel in one position against the force exerted by the spring, a switch actuating member attached to said end of the barrel, and switch contacts extending alongside the barrel within the case and cooperating with the actuating memher to open and close an electric circuit.

4. A lock-switch comprising, a switch case, a lock barrel slidably supported by the front c, therefore provides a rugged and compact structure involving aplunger-type key operated device for operat 4 mg the switch;

a switch case, a lock barrel slidably supported by the front a switch case,

wall of the case, a air of spring blade contacts attached to t 0 back wall of the case and extendin toward the front wall and alongside theliarrel, and a member attached to the barrel and extending laterally from the barrel and alongside the barrel and cooperating with the blade contacts to open attached to the barrel and extending laterand alongside thereof ally from the" barrel and cooperating with the contacts to separate them in one ition of the barrel, and a metal rivet carriedby the plate for bridging the blades in another position of the barrel. 6. A lock switch comprising, a switch case, a lock barrel slidably terminal brackets within the case, a pair of spring blade contacts attached to the back wall of the caseand extendin toward the front wall and alongside the barrel, and a member attached to the barrel and extending laterally from the barrel and'alon ide the barrel and coo crating with the l l ade contacts to open an 'close an electric circuit. 7. A lock-switch comprising, a switch case, a lock barrel slidably supported by the case, terminal brackets within the case, contacts attached to the brackets and extending alongsupported by the case,

side the barrel, and a member attached to the barrel and extending laterally from the barrel and alon ide the barrel and cooperating with the filade contacts to open and close an electric circuit.

8. A lock-switch comprising, a switch case, a lock barrel slidably terminal brackets within the case, contacts attached to the brackets and extendin alongside the barrel, a non-conductingp late attached to the barrel and extendinglaterally from the barrel and alongside thereof and cooperating with the contacts to separate supported bythe case,

them in one position of the barrel, and a 1 metal rivet carried by the plate for bridg ing the blades barrel.

9. A lock-switch comprising, a lock barrel slidably supported by the case, terminal brackets within the tached to the back wall thereof,

in another position of the contacts attached to the brackets and extending alongside the barrel, and'a member attached to the barrel and extending laterally from, the barrel and alongside the barrel and cooperatingwith the blade contacts to open and close an electric circuit.

10. A lock-switch comprising, a switch case, a lock barrel slidably. supported by the case, a spring bearing against a wall of the a switch case,

case and at-- case and the end of the barrel within the case for urging the barrel in one direction, a key controlled latch for holding the barrel in one position against the force exerted by the spring, a pair of spring blade contacts attached to the back wall of the case and extending toward the front wall and alongside the barrel, and a member attached to the barrel and extending laterally from the barrel and alongside the barrel and cooperating with the blade contacts to open and close an electric circuit.

11. A lock switch comprisin in combination, a case, a lock barrel slida ly supported by the case, a spring bearing against a wall of the case and the end of the barrel to urge the barrel in one direction, a key controlled latch for holdingthe barrel in a position against the force of the spring, relatively fixed switch contacts carried by the case and extending alongside the barrel, a switch actuator attached to said barrel and extending alongside of the barrel and carrying a switch contact for bridging the relatively fixed contacts.

12. A lock switch comprising in combination, a switch case having a back wall and a front wall, a lock barrel slidably supported by the'front wall, a plurality of spring blade contacts attached to the back wall of the case and extending toward the front wall and alongside the lock barrel, and a member attached to the barrel and extending laterally therefrom and alongside thereof and coop-. crating with the blade contacts to open and close electric circuits therethrough.

13. A lock switch comprising in combination, a case provided with a nonconducting end wall, conducting brackets mounted upon said nonconducting wall and providing switch contacts, a frame closing an end of the case and providing a tubular bearing, a lock barrel and switch actuating means slidably supported by said tubular bearing, said switch contacts extending toward said frame and alongside the tubular bearing, a nonconducting plate attached to the barrel and carrying a bridging contact for engagement with said switch contacts.

14. A lock switch comprising a case, a lock barrel and switch actuating means slidably supported by the front wall of the case, a group of spring blade contacts attached to the back wall of the case and extending toward the front wall and alongside the switch tion, a case, a lock barrel and switch actuator slidably supported by the front wall of said case, a group of spring blade contacts arranged in juxtaposed osition about a central point at one side 0 said lock barrel, and

nature.

HARRY E. NORVIEL.

actuating means, said contacts being'closely grouped about a central point, a nonconducting plate actuated by the barrel and extending into the central point and cooperating with the contacts to separate them in one p0, ,sition of the barrel and a movable contact carried by said plate operable to coincidentally connect all of said contact blades in another position of said barrel.

15. A lock switch comprising in combina- 

